beautypg.com

Test minimum load relay output – Carrier MINIMUM LOAD CONTROL ACCESSORY 30RB060-390 User Manual

Page 4

background image

4

8. Press the

key.

9. Press the

key until ‘DISP’ is displayed. Wait

10 seconds and cycle the control power using the On/Off

switch.

The chiller is now configured for minimum load valve control.

Test Minimum Load Relay Output —

Use the Scroll-

ing Marquee display, the instructions given in the Controls,

Start-Up, Operation Service and Troubleshooting manual and

the Service Test mode to verify proper operation of the

solenoid(s) (illuminate the Service Test LED, enter the TEST

mode, enable the test request, ‘T.REQ’ and test outputs

‘HGB.A,’ ‘HGB.B’ and for 30RB210-300 only, ‘HGB.C.’
Once the outputs have been tested, the installation is complete.

Return the Enable/Off/Remote contact switch to the desired

position.

ENTER
ESCAPE

00PPN500000600A
TUBE ASSEMBLY

5/8 IN.
TUBING CLAMP
(TYPICAL)

BALL VALVE

SOLENOID VALVE

FIELD-
SUPPLIED
TUBING

BALL VALVE

SOLENOID VALVE

5/8 IN.
TUBING CLAMP
(TYPICAL)

CIRCUIT A

CIRCUIT B

FIELD-SUPPLIED
TUBING

SOLENOID VALVE

SOLENOID VALVE

00PPN500000600A
TUBE ASSEMBLY

1/2 IN. TUBING
CLAMP
(TYPICAL)

BALL VALVE

BALL VALVE

TUBE SUPPORT BRACKET

CIRCUIT A

CIRCUIT B

30RB110

Fig. 5 — Typical Piping Brackets

30RB060-100